Warping machine



' June 9, 1925. 1,541,145

E. HOTTlNGER-SCHARER WARPING MACHINE 2 Sheets-Sheet 1 Filed April 9. 1923 F6 2! [1e menial III n llllllllllll illllllll l June 9, 1925. 1,541,145

E. HOTTINGER-SCHARER WARPINQ MACHINE Filed April 9. 1923 2 Sheets-Sheet 2 Patented June 9, 1925.

UNITED STATES PATENT OFFICE.

WARPING Application filed April 9,

T aZZ whom. it may concern:

Be it known that I, EMIL Horrrnsnm Sorriimzn, a citizen of the Republicot Switzerland, residing at Hombreehtikon, Switzen land, have invented certain new and useful Improvements in lVarping Machines, of which the toliowing is a specification, ref erence being had therein to the accompanying drawing.

It is known with warping machines to narrow the distances between the warp threads passing a broad rack provided on the bank by means of a reed which is smaller than the rack and is arranged on the warping machine. 7 reference to a reed for warping machines of this type which compared with known reeds presents the following advantages. The part of the reed comprising the bars or heddles can be adjusted-from the flat shape into a curved or segment shape of diiiierent. rises of arch. This isadvantageous as the angle between adjacent threadsis altered in accordance with the distance between the rack and the reed. The reed according to the invention may now be curvedto such a segment shape that any friction between the threads and the bars of the reed is avoided.

Furthermore a member adapted to guide the threads is arranged parallel to the frame of the reed, which member imparts an up and down movement to the threads, whereby the points in which thethreads pass the reed alter constantly thus causing a smaller wear of the reed. Further twoturnable stirrups are provided on the frame of the reedby means of which the crossed threads or lease between the guide reed and the reed may be formed with the aid of the lease bars.

The subject matter of the present invention is illustrated by way of example on the accompanying drawings, in which:

Fig. 1 shows the reed in front elevation,

Fig. 2 is a horizontalsection along the line IIII of Fig. 1,

Fig. 3 is a side view on a larger scale,

Fig. 4 is a vertical section along the line IV-IV of Fig. 2, I

Fig. 5 shows the general arrangement of the reed in a warping machine,

Fig. 6 shows part of the reed on a la-rger scale, 1

Figs. 7, S and 9 illustrate the formation of V thecrossed threads withthe reed and The present invention has] MACHINE.

1923. Serial No. 630,822.

Fig. 10 is a detailnrodification.

v Referring to Fig. 5, 1 denotes the bank with the bobbins 2 the threads 3 of which pass through the rack i. 5' is thereed arranged on the arm 6 of the warping machine and adapted to be vertically adjustable. The reed consists in a known manner of a plurality of parallel bars 7, between which stops 7.are provided in a determined order (as is shown in Fig. 6), so that alternately two adjacent intermediate spaces are closed at an upper and a lower elevationrespec- -tively and theneat twoladjacent intermediate spaces are not closed by stops. The part of the reedin which thebars 7 are arranged is provided at its longitudinal sides with a flexible frame formed byrails 8,, the pairs of rails 8 of the upper and of the lower side being adapted to displace themselves relatively to each other and to the bars 7 to a small extent in the longitudinal direction. The ends of the rails 8 project into recesses 9 provided in the slides 10, the latter being displaceably arranged in guide means 11 of a frame 12. Screws 13 are provided in the trame 12 by means of which a pressure may be exerted ontheslides 10. These screws 13 serve to alter the distance of the slides 10 from each other. In this manner the rise as of the arch (Fig. 2) can be made of different size and such a segment shape can be given to the series bars 7 of the reed that the threads 3 pass substantially radial to the curvature given and do notrub against the bars of the reed 5. The frame rails 8 might also be connected to eachother by ineans of pins and longitudinal slots to provide for the relative displacement of the rails. Parallel to the frame 11 of the reed a rod 15 is arranged eccentrically mounted in levers 14 and serving as a guide organ for the threads 3. The levers 14 are rotatable about pins 16 so that they can be adjusted to form a desired angle with the vertical frame of the reed. The threads 3 coming from the reed pass over the eccentrically mounted rod 15 and turn the latter by trictionaction. The turning red causes the threads to perform an upward and downward movement the extreme positions of which are indicated in Fig. t by a full line and a dotted line respectively, so that the point in which they pass between the bars 7 is continually alt ered. Thereby the important'advantage is obtained that the bars are not worn out by the grinding action of the threads, as the points of contact between threads and bars alter their position continuously, thus ensuring a longer life of the bars.

Two stirrup's. 17 and 18,. are. turnably arranged about the screws 13, the stirrups serving for the formation of the lease -or crossed threads 19 between the guide reed 20, which is ar anged in front of the take up roller 21, and thereed by the coope 'ation of theflknown lease bars 22 and 22 When the warping is started all the threads 3.1)assing through the spaces of the reed 5 to the guide .reed are situated in one plane. .In order to form the crossed threads 19 shown separately in Fig. 7 the y a shed is formed lower stirrup 18 is at first turned in the upward 1 direction into the position 18 shown 1n dotted 111195 111 Fig. 8. These threads 3 which are situated 111 spaces of the reed closedvat the top and bottom by stops 7 (Fig- 6) are only lifted by the turning of the stirrup18 until they strike against said stops 7 whereas the other threads 3 (Figs. 6 and 8) are lifted higher. Thereby into which the lease bar 22 is inserted into the position indicated in dotted lines inlfig. 8, whereupon the bar is displaced in the direction ofithe arrow into theposition indicated in fulllines in Fig. 8

7 further lowered.

ample illustrated in Figs.

andwhich corresponds to the position shown in Fig. 5 inrwhich the lease bar rests in its bearings. Then the stirrup 18 is turned in the; downward direction into the position shown in Fig,-9, 11d the upper stirrup 1? is turned into the position li shown in Fig. 9. Thereby again a shed is formed howi ever, in this case the threads 3 are lowered to the lower stops '7 and the threads 3 are The lease bar22 is now inserted into this shed in the position shown in dotted lines in Fig. 9 and is then displaced in thedirection of the arrow towards "the leasebar 22.up to its bearings (Fig. 5).

'When thesti-rrup 17 is turned in the upward direction the crossed threads in icated in Fig. 7 are formed.

The, pins'forrmonnting the guide bar 15, whichare eocentrically arranged in the ex- 14, but which are in alignment may lso ,be arrangedout of alignment with axes 3 and a parallel to each other as is'shown inFig. ;10. In this case ,the threads of the warp will carry out a weavy movement.

, adjustable I claim 1. A reed for warping machines, comprising a number of bars arranged at a small distance from and parallel to each other, a frame in. which said bars are mounted, and means adapted to impartsegment shapesof liiferent rises of arch to said bars .and thereby to the reed.

2. A reed for warping machines, compris- ;dista nce from and iste c fr m a frame in whi ing a number of barsarranged at a small distance fromxand parallel to each other, an

oblong frame having fiexiblelonger sides 111 which said bars are mounted, a further frame with parts serving as guide means, slides coa'cting with said guide means and operatively connected to the first frame, and screw bolts co-operating with said slidesfor altering the distance between the latter and to cause thereby the reed to curve to a segment shape of any desired rise of arch.

1 Areed for warpingmachincs, comprising a. number of b'ars'arranged at a small distance from and parallel to each other, a"

frame in which said bars are mounted, adjustable means adapted toimpart segment shapes of different rises of arch to the reed, and a guidememberon' the forward side of a said frame for thethreads passing through the reed arranged parallel to the frame and imparting, an. up and down movement to said threads.

5, 1A reed for warping machines, comprising anumber of; bars arranged'at a. small parallel to each other, a frame in which, said bars are mounted, adjustable means adapted to impart segment shapes of different rises of arch to the reed, and a guide rod rotatably mounted by means of eccentrically arranged pins and rotated by the threads passing through the reed so as to' impart an up and down movement to said threads.

6. A reed forwarping machines, comprising a nimlierof bars arranged at a small nd parallel to each other, a

said bars are-mounted, a secondfra ne with parts serving as guide means, slides co-actingwith said guide means and operativ'ely connected to said first frame, means adapted to alter thedistancc between said SllClGSflDCl to cause thereby the reed to curve to a segment shape of any desired rise of arch, arms rotatably connected to said second frame, and adapted to be fixed in any angular position, and a guide rod eccentrically mounted in. said arms and rotated by the. threads passingthrough the reed andimparting thereby annp and down movement to said threads. 7

7. In a warping machine, in combination a reed, comprising a number of bars arranged at a small distance-from and parallel to each other, a frame in which said bars are mounted, a second frame with parts serving as guide means, slides co-acting with said guide means and operatively connected to said first frame, means adapted to alter the distance between said slides and to cause thereby the reed to curve to a segment shape of any desired rise of arch, stops alternately arranged between every two adjacent bars of the reed at different elevations, stirrups t-urnably mounted in said second frame and adapted to form sheds on being swung into their extreme positions, and lease bars adapted to be inserted into the sheds for forming crossed threads.

8. In a warping machine, a reed, a pair of parallel flexible frame rails at the top and the bottom of the reed and between which said reed .is held, and means to flex said rails, and thereby the reed, to are shape.

9. A reed for warping machines, a frame, parallel guides, slides mounted between said guides, flexible frame rails mounted in said slides between the guides, a reed secured to said flexible rails and adjusting means in the frame acting on said slides to bow said rails.

10. A reed for warping machines, a frame, parallel guides, slides mounted between said guides, flexible frame rails mounted in said slides between the guides, a reed secured to said flexible rails and adjusting means in the frame acting on said slides to bow said rails, and stirrups mounted on the adjusting means.

11. In a warping machine, a curved reed, means to alter the curvature of the reed during the operation of the machine, a bar in front of said reed and over which the warp threads pass after leaving said reed, and pivots on which said bar is excentri-cally mounted and rotatably and directly supported, said bar being automatically rotated by the friction of the threads as they pass over it to raise and lower the warp threads passing through the reed, for the purpose described.

In testimony whereof I afix my signature. EMIL HOTTINGER-SCHARER. 

